Gentamicin, Random

Test Code

GENR

Preferred Specimen

1 mL serum

Patient Preparation
Collect as a trough just before next dose. Collect peak at the end of a 60 minute IV infusion, 30 minutes after the end of a 30 minute IV infusion or 60 minutes after the IM dose.

Minimum Volume

0.2 mL

Other Acceptable Specimens

Heparinized plasma

Transport Container

Original collection vial

Transport Temperature

Refrigerated (cool packs)

Specimen Stability

Refrigerated: 7 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Anticoagulants other than heparin

Methodology
Immunoassay (IA)

Setup Schedule

24/7

Report Available

Same day

Reference Range

Reference ranges are not avaialbe when not drawn in relation to time dose is given.

Clinical Significance

Gentamicin is an aminoglycoside antibiotic used in the treatment of gram-positive and gram-negative bacterial infections, especially Pseudomonas, Proteus, Klebsiella and Staphylococcus. Gentamicin is potentially nephrotoxic and ototoxic. Serial monitoring of peak and trough serum levels may provide the clinician with information to maintain safe and therapeutic levels.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.